Earnings Per Share - Schedule of Computation (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Antidilutive Securities Excluded from Computation of Earnings Per Share
Net income	$ 930.5	$ 851.9	$ 2,503.1	$ 1,572.0
Basic weighted-average common shares outstanding (in shares)	256.5	257.9	255.8	258.7
Effect of potentially dilutive securities:
Employee stock purchase program (in shares)	0.0	0.0	0.1	0.0
Diluted weighted-average common shares outstanding (in shares)	259.5	259.7	258.7	260.9
Basic net income per common share (in dollars per share)	$ 3.63	$ 3.30	$ 9.78	$ 6.08
Diluted net income per common share (in dollars per share)	$ 3.59	$ 3.28	$ 9.68	$ 6.03
Stock options
Effect of potentially dilutive securities:
Share-based payment arrangements (in shares)	1.4	1.0	1.4	1.1
Restricted stock units (including PSUs)
Effect of potentially dilutive securities:
Share-based payment arrangements (in shares)	1.6	0.8	1.4	1.1